542339 has 4 divisors (see below), whose sum is σ = 619824. Its totient is φ = 464856.

The previous prime is 542323. The next prime is 542371. The reversal of 542339 is 933245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 933245 = 5 ⋅186649.

It is not a de Polignac number, because 542339 - 2⁴ = 542323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38732 + ... + 38745.

It is an arithmetic number, because the mean of its divisors is an integer number (154956).

2⁵⁴²³³⁹ is an apocalyptic number.

542339 is a deficient number, since it is larger than the sum of its proper divisors (77485).

542339 is an equidigital number, since it uses as much as digits as its factorization.

542339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77484.

The product of its digits is 3240, while the sum is 26.

The square root of 542339 is about 736.4366911011. The cubic root of 542339 is about 81.5499336443.

The spelling of 542339 in words is "five hundred forty-two thousand, three hundred thirty-nine".